216 Trans. Acad. Sci. of St. Louis. 
5 — Form slender, convex, rather shining, the elytra and abdomen dull in 
lustre, piceous- black, the head, prothorax and entire antennae dusky 
testaceous, the legs paler, flavo-testaceous throughout; head large, the 
eyes moderately developed, the sides behind them very feebly converg- 
ing and nearly straight for along distance, then broadly rounded into 
the broadly subtruncate base; front not impressed; prothorax large, 
elongate-suboval, three-fourths as wide as the head and of the usual 
form; elytra small, very finely but densely, asperately punctate, 
parallel, slightly longer than wide, much narrower than the head, 
scarcely visibly. wider than the prothorax and equal in length to the 
latter; abdomen at base very nearly as wide as the elytra, rapidly 
broadening posteriorly, and, at the apex of the fourth segment, much 
wider than the elytra and as wide as the head. Male with sexual mod- 
ifications nearly similar to those of elaborata but differing in having the 
medial tooth of the impression of the fourth ventral more anterior in 
position and somewhat distant from the transversely rectilinear apical 
edge of the depression and in having the broad shallow impression of 
the fifth ventral transversely oblong with parallel and much straighter 
sides, the apex along the impression broadly and triangularly emarginate 
throughout the width of the latter; subtriangular sinus of the sixth 
segment larger, but little more than twice as wide as deep. Length 
3.5-3.8 mm.; width 0.6-0.65 mm. New York (Long Island) and North 
Carolina (Asheville)....-... siiehene odd he ble cocececeseesVentralis n. sp. 
Form rather less slender but otherwise nearly similar throughout to 
ventralis, the coloration similar; head relatively smaller though more 
elongate, rather longer than wide, the base evenly, semicircularly 
rounded throughout, becoming parallel for a short distance behind the 
eyes; prothorax large, nearly five-sixths as wide as the head, longer 
than wide, strongly rounded at the sides; elytra relatively larger than in 
ventralis, but little narrower than the head and slightly wider than the 
prothorax, equal in length to the latter, longer than wide, parallel, 
minutely, densely and asperately punctate; abdomen at base but little 
narrower than the elytra, moderately broadening posteriorly, at the 
apex of the fourth segment rather wider than the head. Male having 
sexual characters similar in general to those of ventralis, the teeth at 
the sides of the apex of the impression of the fourth ventral much 
smaller and not at all conspicuous, the medial tooth more elongate but 
not very much more posterior in position, the impression of the fifth 
segment nearly similar in form and extent but with its posterior margin 
feebly and subcircularly sinuate toward the middle, the sinus of the 
sixth ventral nearly similar but rather smaller and shallower, the sur- 
face feebly and biobliquely impressed. Length 3.9 mm.; width 0.68 mm. 
Ohio (Cincinnati), — Mr. Charles Dury....-...0+e++--+++eGUryi 0. Sp. 
The coloration of the legs in opaca — which was originally 
described as an Hchiaster,—is inconstant, some specimens hav- 
ing them a uniform clear honey-yellow throughout, while 
others have the tibiae almost piceous-black and the tarsi but 
